McCulloch 96188000300 Snow Blower User Manual
Contents
1. McCULLOCH MC621 Owner s Manual CONGRATULATIONS on your purchase of a new snow thrower It has been designed engineered and manufactured to give best possible dependability and performance Should you experience any problem you cannot easily remedy please contact your nearest authorized service center We have competent well trained technicians and the proper tools to service or repair this unit Please read and retain this manual The instructions will enable you to assemble and maintain your snow thrower properly Always observe the SAFETY RULES Safe Operation Practices for Walk Behind Snow Throwers IMPORTANT This snow thrower is capable of amputating hands and feet and throwing objects Failure to observe the following safety instructions could result in serious injury Look for this symbol to point out important safety precautions It means CAUTION BE COME ALERT YOUR SAFETY IS INVOLVED WARNING Always disconnect spark plug wire and place it where it cannot contact plug in or der to prevent accidental starting when setting up transporting adjusting or making repairs WARNING This snow thrower is for use on sidewalks driveways and other ground level surfaces Caution should be exercised while using on sloping surfaces Do not use snow thrower on surfaces above ground level such as roofs of residences garages porches or other such structures or buildings Training 1 Read unde2. OOOO SESSION 70000000 OOOO OOOO WOOO O amp OK Figure 29 1 Spark plug wire IMPORTANT Replace a cracked fouled or dirty spark plug Do not clean the electrodes because grit entering the cylinder can damage the engine 11 Set the gap on the plug to 0 030 inch 0 76 mm Figure 30 0 030 inch 0 76 mm Figure 30 Install the spark plug and torque it to 20 22 ft lb 27 30 N m Connect the spark plug wire to the spark plug Figure 29 Remove the oil fill cap Install the shroud with the screws removed in step 4 Figure 28 NOTE Ensure that the shroud assembly fits together in the side grooves 16 Install the oil fill cap 17 Install the discharge chute and the discharge chute handle onto the snowthrower using the hardware re moved in step 3 Figure 27 13 14 15 Replacing the Drive Belt If drive belt becomes worn oil soaked excessively cracked frayed or otherwise damaged replace the belt 1 Remove the drive side cover by removing the six screws as shown in Figure 31 Figure 31 1 Drive side cover 5 Idler pulley 2 Screw 6 Engine pulley 3 Drive pulley 7 Drive belt 4 Idler arm Press down on front of idler arm to release the belt tension Figure 31 Remove the drive belt from the drive pulley Figure 31 15 4 Install the new drive belt routing it as shown in Figure 32 NOTE Route the new drive
3. Use Figure 25 below to select the best oil viscosity for the outdoor temperature range expected SAE VISCOSITY GRADES 30 32 40 60 80 C 30 20 10 o 10 20 30 TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE Figure 25 100 Fill if oil is below Add onthe dipstick lt 4 filler cap lt q Figure 26 NOTE 10W30 synthetic oil is acceptable for use in cold temperatures 10 Screw in the oil fill cap dipstick and hand tighten it securely Wipe up any spilled oil Dispose of the used oil properly at a local recycling center Servicing the Spark Plug Use a NGK BPR6ES Champion RN9YC or BOSCH WRE6EDC spark plug or equivalent 1 Stop the engine and wait for all moving parts to stop Rotate the discharge chute so that it faces forward 3 Remove the discharge chute the discharge chute handle by removing the three carriage bolts and flange nuts Figure 27 Figure 27 1 Discharge chute 2 Carriage bolts 3 Flange nuts 4 Remove the six screws that secure the shroud as sembly Figure 28 Figure 28 3 Oil fill cap 1 Screw 2 Shroud assembly 14 Remove the oil fill cap Remove the shroud assembly Figure 28 Install the oil fill cap Disconnect the spark plug wire from the spark plug Figure 29 Clean around the spark plug Remove the spark plug from the cylinder head ON oi o X
4. Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 23 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 FRAME ASSEMBLY lt KY BY ot SSST Frame asm_3 25 4 mm 1 inch IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty NOTE All component dimensions given in U S inches 24 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 FRAME ASSEMBLY KEY oonoananron ak i mk N O NOTE All component dimensions given in U S inches PART NO 532 43 48 56 532 43 76 06 532 43 76 62 532 43 54 17 532 43 55 78 532 15 04 06 532 19 17 30 872 14 04 05 532 43 55 35 532 43 48 57 532 43 48 74 817 41 13 12 a 2 N N WBWNHNN YN DESCRIPTION LCT ENGINE FRAME WELDMENT WHEEL 8X1 5 BRICK GS 3SPK MS421 NUT PUSH AXLE 0 5IN SCREW 5 16 24 X 2 00 HHCS BOLT ENG 3 8 16 X 1 280 NUT HEX FLANGE 1 4 20 CTR LOCK BOLT RDHD SQNK 1 4 20 UNC X 5 8 PLATE SCRAPER SPACER ENGINE LEVER CHOKE HEX BOLT 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 25 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 9618
5. WASHER RATCHET PAWL BOLT 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 19 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 HANDLE ASSEMBLY SSST Handle asm_1 KEY PART NO NO QTY DESCRIPTION 1 532 43 76 67 1 BAIL HANDLE PAINT MS431 2 532 43 76 64 1 HANDLE PNT UPPER SSST 3 532 43 48 06 1 CONTROL CABLE 4 532 19 19 38 2 KNOB HANDLE BLACK 5 532 19 15 74 2 BOLT HANDLE BLACK PATCHED 6 532 14 50 06 1 CLIPPUSH IN HINGED NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 20 SSST Auger asm_1 KEY NOTE All component dimensions given in U S inches oonoanron PART NO 872 11 04 07 532 43 76 20 532 19 96 87 532 43 76 18 532 13 20 04 819 09 10 16 532 43 74 59 532 43 76 17 532 43 76 21 532 43 76 22 817 60 04 06 872 11 04 04 873 68 04 00 812 00 00 28 QTY MNANNANANAAYANMHA FH REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 AUGER ASSEMBLY DESCRIPTION BOLT CARRIAGE PIN ROLL 3 16 X 1 1 4 BOLT 1 4 20 1 50 PLATE CENTER BLADE HEX NUT 1 4 20 NYLON LOCKING WASHER 9 32 X 5 8 X 16 GA BLADE AUGER WELDMENT AUGER ASM SUPPORT BEARING SSST PNT BEARI
6. belt first around the engine pulley then the idler pulley and finally around the drive pulley while pressing down on the front of the idler arm Figure 32 5 Install the drive side cover with the screws removed in step 1 Figure 32 Idler arm Idler pulley Engine pulley Drive pulley POM gt NOTE Ensure that the drive belt is properly adjusted and operating refer to Checking the Control Cable and Adjusting the Control Cable in the Maintenance section of this manual Storage Storing the Snowthrower Immediately prepare your snow thrower for storage at the end of the season or if the unit will not be used for 30 days or more WARNING Never store the snow thrower with gasoline in the tank inside a building where fumes may reach an open flame spark or pilot light as on a furnace water heater clothes dryer or gas appliance Allow the engine to cool before storing in any enclosure SNOW THROWER When snow thrower is to be stored for a period of time clean it thoroughly remove all dirt grease leaves etc Store in a clean dry area 1 Clean entire snow thrower after each use 2 Inspect and replace belts if necessary See Replace ing the Drive Belt section of this manual 3 Besurethatallnuts bolts screws and pins are securely fastened Inspect moving parts for damage breakage and wear Replace if necessary 4 Touch up all rusted or chipped paint surfaces sand lightly before paintin
7. direct the discharge toward people or areas where property damage can occur Keep children and others away 11 Do not overload the machine capacity by attempting to clear snow at too fast a rate 12 Never operate the machine at high transport speeds on slippery surfaces Look behind and use care when operating in reverse 13 Disengage power to the auger blades when snow thrower is transported or not in use 14 Use only attachments and accessories approved by the manufacturer of the snow thrower 15 Never operate the snow thrower without good visibility or light Always be sure of your footing and keep a firm hold on the handles Walk never run 16 Never touch a hot engine or muffler Clearing a Clogged Discharge Chute Hand contact with the rotating auger blades inside the discharge chute is the most common cause of injury associated with snow throwers Never use your hand to clean out the discharge chute To clear the chute 1 SHUT THE ENGINE OFF 2 Wait 10 seconds to be sure the auger blades have stopped rotating 3 Always use a clearing tool at least 15 inches long Maintenance and Storage 1 Check shear bolts and other bolts at frequent intervals for proper tightness to be sure the equipment is in safe working condition 2 Never store the machine with fuel in the fuel tank inside a building where ignition sources are present such as hot water heaters space heaters or clothes dryers Allowthe eng
8. 8000300 DRIVE ASSEMBLY ZEN ANN ud Vi SSST Drive asm 3 KEY PART NO NO QTY DESCRIPTION 1 532 43 48 60 SPACER ENGINE CRANK 2 532 43 45 02 KEEPER ENGINE BELT 3 532 42 64 90 PULLEY ENG TRACTION 3 4 4 532 85 10 74 WASHER HARDEN 5 532 43 72 61 BELT V TRACTION 6 532 43 08 17 SCREW CAPSCHD 3 8 24 X 1 25 7 532 43 48 59 SPRING IDLER PULLEY RETURN 8 532 43 76 09 ARM IDLER PNT MS431 9 532 16 60 43 10 817 06 06 20 PULLEY IDLER BACKSIDE SCREW HXWH THDRL 1 4 20X1 1 4 e ee ee m m m m m m m m m m r 11 532 19 90 92 SPACER RETAINER 12 817 06 06 20 SCREW 3 8 16X1 SMGML TAP R BLK 13 532 43 53 83 PULLEY DRIVEN sa 532 17 45 72 DECAL SPARK CANADA 532 43 64 09 OWNER S MANUAL ENGLISH FRENCH NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 26 SERVICE NOTES LIMITED WARRANTY The Manufacturer warrants to the original consumer purchaser that this product as manufactured is free from defects in mate rials and workmanship For a period of two 2 years from date of purchase by the original consumer purchaser we will repair or replace at our option without charge for parts or labor incurred in replacing parts any part which we find to be defective due to materials or workmanship This Warranty is subject to the following
9. CT SPECIFICATIONS Guess eres 3 STORAGE or Er EU Eee 16 CUSTOMER RESPONSIBILITIES ccesseessesseeesees 3 TROUBLESHOOTING cccsseesseersseesseenseensseeseneesenes 17 SAFETY AND INSTRUCTIONAL DECALS 0 4 REPAIR PARTS ere 18 26 SUP eeaeee lede 5 6 WARRANT Y c sceeeesesceeesnseesesseeesenesnssneesesesesnneneees 28 OPERATION succeser rer rr 7 11 KNOW YOUR SNOW THROWER READ THIS OWNER S MANUAL AND ALL SAFETY RULES BEFORE OPERATING YOUR SNOW THROWER Com pare the illustrations with your snow thrower to familiarize yourself with the location of various controls and adjustments Save this manual for future reference These symbols may appear on your snow thrower or in literature supplied with the product Learn and under stand their meaning IMPORTANT Safety and instruction decals are located near areas of potential danger Replace damaged decals A mm ta k e DANGER ra ENGINE CHOKE PRIMER FUEL OR WARNING OFF LL READ AND FOLLOW ALL SAFETY INFORMATION AND INSTRUCTIONS BEFORE USE OF THIS PRODUCT KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE A DANGER TO AVOID INJURY FROM ROTATING AUGER KEEP HANDS FEET AND CLOTHING AWAY Shut off engine before unclogging chute A clean out tool must be used Never use your hand to unclog chute e READ AND FOLLOW OWNER S MANUAL e NEVER ALLOW CHILDREN TO OPERATE SNOWTHROWERS e KEEP ALL SHIELDS AND GUARDS IN PLACE WHILE OPERATING e SHUT OF
10. Empty fuel tank amp carburetor refill with fresh clean gasoline 11 Water in fuel 11 Empty fuel tank amp carburetor refill with fresh clean gasoline Loss of power 1 Spark plug wire loose 1 Reconnect spark plug wire 2 Throwing too much snow 2 Reduce speed and width of swath 3 Fuel tank cap is covered 3 Remove ice and snow on and around fuel tank cap with ice or snow 4 Dirty or clogged muffler 4 Clean or replace muffler 5 Improper cable length 5 Adjust cable Engine idles or 1 Choke is in FULL position 1 Move choke to OFF position runs roughly 2 Blockage in fuel line 2 Clean fuel line 3 Stale fuel 3 Empty fuel tank amp carburetor refill with fresh clean gasoline 4 Water in fuel 4 Empty fuel tank amp carburetor refill with fresh clean gasoline 5 Carburetor is in need of 5 Contact an authorized service center department adjustment or overhaul Excessive 1 Loose parts or damaged 1 Tighten all fasteners Replace damaged parts If vibration vibration augers or impeller remains contact an authorized service center department Recoil starter 1 Frozen recoil starter 1 See IF RECOIL STARTER HAS FROZEN is hard to pull in the Operation section of this manual Loss of traction 1 Drive belt is worn 1 Check replace drive belt drive slowing 2 Drive belt is off of pulley 2 Check reinstall drive belt of drive speed 3 Auger blades worn 3 Contact an authorized service center departmen
11. F ENGINE AND REMAIN BEHIND HANDLES UNTIL ALL MOVING PARTS HAVE IGNITION KEY STOPPED BEFORE UNCLOGGING OR INSERT TO START SERVICING UNIT AND RUN PULL OUT TO STOP e TO AVOID THROWN OBJECT INJURIES NEVER DIRECT DISCHARGE AT BYSTANDERS USE EXTRA CAUTION WHEN OPERATING ON GRAVEL SURFACES Setup Loose Parts Use the chart below to verify that all parts have been shipped No parts required o o Sono Unfold the handle Carriage bolts Flange nuts Washers Knob Chute Deflector 1 Unfolding the Handle Procedure 1 Loosen the two handle knobs and pull out the two handle bolts until you can move the handle freely and rotate the handle to the operating position Figure 2 1 Handle knobs 2 Handle bolt 2 Tightenthe handle knobs until they are snug Figure 3 Figure 3 Install the discharge chute Install the discharge chute Install the discharge chute Install the discharge chute 2 Installing the Discharge Chute Procedure Install the discharge chute as shown Figure 4 1 yj F A Mnn Figure 4 1 Deflector 4 Washer 2 Carriage bolts 5 Knob 3 Flange nuts 6 Discharge chute IMPORTANT Do not overtighten the flange nuts otherwise you may damage the discharge chute 3 Filling the Engine with Oil ENGINE See engine manual LUBRICATION Use only high quality detergent oil rated with API service classification SG SL Select the oil s SAE viscosity grade accordin
12. NG BALL MANDREL SCREW HEX WASHEAD 1 4 20 X 3 8 BOLT CARR SS 1 4 20 UNC X 1 2 GR5 WHIZ LOCK NUTS BEARING CAPS RETAINING CLIP 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 21 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 SHROUD ASSEMBLY SSST Shroud asm_7 NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 22 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 SHROUD ASSEMBLY KEY DBNOATAAOHDW F ai ee ek sek ak NO BMY O NOTE All component dimensions given in U S inches PART NO 532 43 76 27 532 43 76 30 532 43 76 34 532 43 02 20 532 43 62 35 532 43 54 07 532 43 76 48 532 43 76 31 817 41 13 12 817 67 04 12 532 43 48 80 532 14 68 48 532 43 54 09 532 43 48 68 532 43 62 76 532 19 66 88 9 io Se ae ee ee ee ee ME e WNHNDND DESCRIPTION COVER NON DRIVE SIDE MS428 COVER DRIVE SIDE MS428 TOPCOVER CAPASM FUEL 2 25 FR N CB E10 BULB PRIMER KEY HOUSING TOPREAR COVER PLATE EXHAUST PNT SCREW SCREW HEXWSH THDROL 1 4 20X3 4 TANK FUEL ASM TIE CABLE 24 5X 29 NYLON WHITE KEY CLIP HANDLE STARTER CLIPS 1 inch 25 4 mm IMPORTANT
13. ar Stopping the Engine To stop the engine pull key out Figure 17 Figure 17 Adjusting the Discharge Chute and Chute Deflector To adjust the discharge chute move deflector chute handle left or right to desired position Figure 18 Figure 18 1 Chute deflector knob 2 Chute deflector 3 Chute handle To raise or lower the angle of the chute deflector loosen the chute deflector knob on the chute deflector and move the chute deflector up or down Figure 18 10 Clearing a Clogged Discharge Chute Hand contact with the rotating auger blades inside the discharge chute is the most common cause of injury associated with snow throwers Never use your hand to clean out the discharge chute To clear the chute 1 2 3 SHUT THE ENGINE OFF Wait 10 seconds to be sure the auger blades have stopped rotating Always use a Clearing tool at least 15 inches long not your hands Figure 19 Figure 19 Preventing Freeze up after Use Let the engine run for a few minutes to prevent moving parts from freezing Stop the engine wait for all mov ing parts to stop and remove ice and snow from the snowthrower Clean off any snow and ice from the base of the chute Rotate the discharge chute left and right to free it from any ice buildup With the ignition key in the Off position pull the recoil starter handle several times or connect the electrical cord to a power source and the snow
14. ck or fire Thoroughly inspect the electrical cord before plug ging it into a power source If the cord is damaged do not use it to start the snowthrower Replace or repair the damaged cord immediately Contact an Authorized Service Dealer for assistance S33 Figure 14 1 Recoil start handle IMPORTANT Run the electric starter no more than 10 times at intervals of 5 seconds on then 5 seconds off Running the electric starter extensively can overheat and damage it If the engine does not start after this series of attempts wait at least 40 minutes to allow the starter to cool before attempting to start it again If the engine does not start after the second series of attempts take the snowthrower to an Authorized Service Dealer for service NOTE If you pull the recoil handle and feel no resistance the starter may be frozen Thaw out the starter before attempting to start the snowthrower 5 While the engine is running move the choke lever slowly to the right position 6 Unplug the extension cord from the power source and the snowthrower Figure 13 A Unplug the power cord whenever you are not start ing the snowthrower Engaging the Auger Blades To engage the auger blades hold the control bar against the handle Figure 15 Figure 15 1 Control bar Disengaging the Auger Blades To disengage the auger blades release the control bar Figure 16 Figure 16 1 Control b
15. e place e Do not store gasoline from one season to another e Replace your gasoline can if your can starts to rust Rust and or dirt in your gasoline will cause problems e If possible store your snow thrower indoors and cover it to protect it from dust and dirt e Cover your snow thrower with a suitable protective cover that does not retain moisture Do not use plastic Plastic cannot breathe which allows condensation to form and will cause your snow thrower to rust IMPORTANT Never cover snow thrower while engine exhaust area is still warm Troubleshooting See appropriate section in manual unless directed to an authorized service center department PROBLEM CAUSE CORRECTION Does not start Fuel shut off valve if so equipped in OFF position l Turn fuel shut off valve to OPEN position 2 Safety ignition key 2 Insert safety ignition key is not inserted 3 Out of fuel 3 Fill fuel tank with fresh clean gasoline 4 Throttle in STOP position 4 Move throttle to FAST position or ON OFF switch is OFF or ON OFF switch to ON position 5 Choke in OFF position 5 Move to FULL position 6 Primer not depressed 6 Prime as instructed in the Operation section of this manual 7 Engine is flooded 7 Wait a few minutes before restarting DO NOT prime 8 Spark plug wire is 8 Connect wire to spark plug disconnected 9 Bad spark plug 9 Replace spark plug 10 Stale fuel 10
16. from this Warranty are belts blades blade adapters normal wear normal adjustments standard hardware and normal maintenance 7 Inthe event you have a claim under this Warranty you must return the product to an authorized service dealer Should you have any unanswered questions concerning this Warranty please contact HOP In Canada contact Outdoor Products Customer Service Dept HOP 9335 Harris Corners Parkway 5855 Terry Fox Way Charlotte NC 28269 USA Mississauga Ontario L5V 3E4 giving the model number serial number and date of purchase of your product and the name and address of the authorized dealer from whom it was purchased THIS WARRANTY DOES NOT APPLY TO INCIDENTAL OR CONSEQUENTIAL DAMAGES AND ANY IMPLIED WARRAN TIES ARE LIMITED TO THE SAME TIME PERIODS STATED HEREIN FOR OUR EXPRESSED WARRANTIES Some areas do not allow the limitation of consequential damages or limitations of how long an implied Warranty may last so the above limitations or exclusions may not apply to you This Warranty gives you specific legal rights and you may have other rights which vary from locale to locale This is a limited Warranty within the meaning of that term as defined in the Magnuson Moss Act of 1975 L McCuLLOCH 436409 08 18 10 TH Printed in the U S A
17. g FUEL SYSTEM IMPORTANT Itis important to prevent gum deposits from forming in essential fuel system parts such as carburetor fuel hose or tank during storage Also alcohol blended fuels called gasohol or using ethanol or methanol can attract moisture which leads to separation and formation of acids during storage Acidic gas can damage the fuel system of an engine while in storage Empty the fuel tank by starting the engine and letting it run until the fuel lines and carburetor are empty e Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur e Use fresh fuel next season NOTE Fuel stabilizer is an acceptable alternative in mini mizing the formation of fuel gum deposits during storage Add stabilizer to gasoline in fuel tank or storage container Always follow the mix ratio found on stabilizer container Run engine at least 10 minutes after adding stabilizer to allow the stabilizer to reach the carburetor Do not empty the gas tank and carburetor if using fuel stabilizer 16 ENGINE OIL Drain oil with engine warm and replace with clean engine oil See Changing the Engine Oil section of this manual CYLINDER 1 Remove spark plug 2 Pour one ounce 29 ml of oil through spark plug hole into cylinder 3 Pull recoil starter handle slowly a few times to distribute oil 4 Replace with new spark plug OTHER e Remove safety ignition key store it in a saf
18. g startup CAUTION Muffler and other engine parts be come extremely hot during operation and remain hot after engine has stopped To avoid severe burns on contact stay away from these areas WARNING Engine exhaust some of its con stituents and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm d Never fill containers inside a vehicle or on atruck or trailer bedwith aplasticliner Always place containers onthe ground away from your vehicle before filling e When practical remove gas powered equipment from the truck or trailer and refuel it on the ground If this is not possible then refuel such equipment on a trailer with a portable container rather than from a gasoline dispenser nozzle f Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until refueling is complete Do not use a nozzle lock open device g Replace gasoline cap securely and wipe up spilled fuel h If fuel is spilled on clothing change clothing im mediately Use extension cords and receptacles as specified by the manufacturer for all units with electric drive motors or electric starting motors Never attempt to make any adjustments while the engine motor is running except when specifically recommended by manufacturer Always wear safety glasses or eye shields during op eration or while perform
19. g to your expected operating temperature NOTE Although multi viscosity oils 5W30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your engine oil level more frequently to avoid possible engine damage from running low on oil Change the oil after every 25 hours of operation or at least once a year if the snow thrower is not used for 25 hours in one year Check the crankcase oil level before starting the engine and after each five 5 hours of continuous use Tighten oil fill cap dipstick securely each time you check the oil level SAE VISCOSITY GRADES E 20 o 30 32 40 60 80 100 C 30 20 10 o 10 20 30 TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE Figure 5 NOTE 10W30 synthetic oil is acceptable for use in cold temperatures 1 Move the snowthrower to a level surface 2 Clean around the dipstick Figure 6 NOTE Dipstick location may vary depending on engine type 3 Remove either side mounted filler cap dipstick or high oil fill dipstick and wipe it clean Fill if oil is below onthe dipstick lt q ES fillifoilis below letter L onthe filler cap Figure 6 1 Oil filler cap dipstick 4 Insertthe dipstick into the filler neck and turn clockwise until fully seated Then remove the dipstick by turning it c
20. ine to cool before storing in any enclosure 3 Always refer to operator s manual for important details if the snow thrower is to be stored for an extended period 4 Maintain or replace safety and instruction labels as necessary 5 Run the machine a few minutes after throwing snow to prevent freeze up of the collector impeller SERIAL NUMBER DATE OF PURCHASE THE MODELAND SERIAL NUMBERS WILL BE FOUND ONADECALATTACHED TO THE REAR OF THE SNOW THROWER HOUSING Figure 1 YOU SHOULD RECORD BOTH SERIAL NUMBER AND DATE OF PURCHASE AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE PRODUCT MAINTENANCE LEVEL SERIAL l MODEL CATALOG FOR SERVICE CALL 1 800 849 1297 CONFORMS TO ANSI B71 3 2005 SAFETY STANDARDS ASSEMBLED IN U S A Orangeburg SC 29118 407435 Figure 1 SUSTOMER RESPONSIBILITIES Read and observe the safety rules e Follow a regular schedule in maintaining caring for and using your snow thrower e Follow the instructions under Maintenance and Stor age sections of this manual PRODUCT SPECIFICATIONS Gasoline Capacity 1 6 Quarts 1 5 Liters and Type Unleaded Regular only Oil Type SAE 30 above 50 F API SG SL SAE 5W 30 or 10W 30 32 to 50 F SAE 5W 30 below 32 F Oil Capacity 16 Ounces 0 47 Liters Spark Plug F6RTC Gap 0 030 0 762 mm TABLE OF CONTENTS SAFETY RULES rr oe nere sd 2 3 MAINTENANCE suser rer rer reen 11 15 PRODU
21. ing an adjustment or repair to protect eyes from foreign objects that may be thrown from the machine Operation Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times 2 Exercise extreme caution when operating on or cross ing gravel drives walks or roads Stay alert for hidden hazards or traffic 3 After striking a foreign object stop the engine motor disconnect the cord on electric motors thoroughly inspect the snow thrower for any damage and repair the damage before restarting and operating the snow thrower Remove key 4 Ifthe unit should start to vibrate abnormally stop the engine motor and check immediately for the cause Vibration is generally a warning of trouble 5 Stop the engine motor whenever you leave the op erating position before unclogging the auger housing or discharge chute and when making any repairs adjustments or inspections 6 Whencleaning repairing or inspecting the snow thrower stop the engine and make certain the auger blades and all moving parts have stopped Remove key 7 Do not run the engine indoors except when starting the engine and for transporting the snow thrower in or out of the building Open the outside doors exhaust fumes are dangerous 8 Exercise extreme caution when operating on slopes 9 Never operate the snow thrower without proper guards and other safety protective devices in place and working 10 Never
22. limitations and exclusions 1 This warranty does not apply to the engine transaxle transmission components battery except as noted below or com ponents parts thereof Please refer to the applicable manufacturer s warranty on these items Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchas er Transportation charges for any parts submitted for replacement under this warranty must be paid by the purchaser un less such return is requested by the manufacturer Battery Warranty On products equipped with a Battery we will replace without charge to you any battery which we find to be defective in manufacture during the first ninety 90 days of ownership After ninety 90 days we will exchange the Battery charging you 1 12 of the price of a new Battery for each full month from the date of the original sale Battery must be maintained in accordance with the instructions furnished The Warranty period for any products used for rental or commercial purposes is limited to 90 days from the date of origi nal purchase This Warranty applies only to products which have been properly assembled adjusted operated and maintained in ac cordance with the instructions furnished This Warranty does not apply to any product which has been subjected to altera tion misuse abuse improper assembly or installation delivery damage or to normal wear of the product Exclusions Excluded
23. ounter clockwise 5 Fill oil to FULL on dipstick with the recommended oil Securely screw in the oil filler cap dipstick Product Overview Figure 7 1 Discharge chute 8 Electric start button 2 Chute deflector handle 9 Oil drain plug 3 Fuel tank cap 10 Drive belt cover 4 Control bar 11 Oil fill cap dipstick 5 Recoil start handle 12 Ignition key 6 Primer 13 Chute deflector 7 Choke lever Dipstick location may vary depending on engine type Operation NOTE Determine the left and right sides of the machine from the normal operating position e Gasoline is extremely flammable and explosive A fire or explosion from gasoline can burn you and others To prevent a static charge from igniting the gaso line place the container and or snowthrower on the ground before filling not in a vehicle or on an object e Fill the tank outdoors when the engine is cold Wipe up spills Do not handle gasoline when smoking or around an open flame or sparks Store gasoline in an approved fuel container out of the reach of children e Do not tip the snowthrower with fuel in the fuel tank CA he operation of any snow thrower can result in foreign objects thrown into the eyes which canresultin severe eye damage Always wear meridia Safety glasses or eye shields while operating your snow thrower or performing any adjust ments or repairs We recommend standard safety glasses or a wide vision safety ma
24. rstand and follow all instructions on the machine and in the manual s before operating this unit Be thoroughly familiar with the controls and the proper use of the equipment Know how to stop the unit and disengage the controls quickly 2 Never allow children to operate the equipment Never allow adults to operate the equipment without proper instruction 3 Keep the area of operation clear of all persons par ticularly small children 4 Exercise caution to avoid slipping or falling especially when operating the snow thrower in reverse Preparation 1 Thoroughly inspect the area where the equipment is to be used and remove all doormats sleds boards wires and other foreign objects 2 Disengage all clutches and shift into neutral before starting the engine motor if equipped 3 Donotoperate the equipment without wearing adequate winter garments Avoid loose fitting clothing that can get caught in moving parts Wear footwear that will improve footing on slippery surfaces 4 Handle fuel with care it is highly flammable a Use an approved fuel container b Never add fuel to a running engine or hot engine c Fill fuel tank outdoors with extreme care Never fill fuel tank indoors WARNING Snow throwers have exposed rotating parts which can cause severe injury from contact or from material thrown from the discharge chute Keep the area of operation clear of all persons small children and pets at all times includin
25. sitions Inspecting the Auger Blades Before each session inspect the auger blades for wear When a auger blade edge has worn down have an Authorized Service Dealer replace the auger blades and the scraper Figure 22 Figure 22 1 Auger blades 2 Scraper Changing the Engine Oil Run the engine a few minutes before changing the oil to warm it Warm oil flows better and carries more contaminants The engine oil will be hot Avoid skin contact with the used engine oil 1 Move snowthrower to a level surface 2 Run snowthrower until all fuel has been depleted Remove ignition key Figure 23 1 Oil drain plug 4 Place an oil drain pan under the oil drain plug remove the oil drain plug and tip the snowthrower backward and drain the used oil in the oil drain pan Figure 23 5 After draining the used oil return the snowthrower to the operating position 6 Install the oil drain plug and torque to 145 150 in lbs 17 N m NOTE Dipstick location may vary depending on engine type Figure 24 1 Oil fill cap dipstick 13 7 Clean around the oil filler cap dipstick Figure 24 8 Unscrew the oil fill cap dipstick and remove it Figure 24 9 With the snowthrower in the operating position care fully pour oil into the oil fill hole until Full on the fill cap dipstick line Figure 26 Max fill 18 oz 0 51 type automotive detergent oil with an API service classification of SJ SL or higher
26. sk worn over spectacles IMPORTANT Know how to operate all controls before adding fuel or attempting to start the engine Filling the Fuel Tank Fill the fuel tank with fresh unleaded gasoline do not exceed 87 octane rating Figure 8 Figure 8 IMPORTANT Do not add oil to the gasoline IMPORTANT Do not use E85 blended fuels This engine is not E20 E30 E85 compatible Alternative fuels with high alcohol content can cause hard starting poor engine performance and may cause internal engine damage NOTE For best results purchase only the quantity of gasoline that you expect to use in 30 days Otherwise you may add fuel stabilizer to newly purchased gasoline to keep it fresh for up to 6 months Checking the Engine Oil Level NOTE 10W30 synthetic oil is acceptable for use in cold temperatures 1 Move the snowthrower to a level surface 2 Clean around the dipstick Figure 9 NOTE Dipstick location may vary depending on engine type 3 Remove either side mounted filler cap dipstick or high oil fill dipstick and wipe it clean Fill if oil is below Add onthe dipstick 4 Fill if oil is below letter L on the filler cap 4 Figure 9 1 Oil filler cap dipstick 4 Insertthe dipstick into the filler neck and turn clockwise until fully seated Then remove the dipstick by turning it counter clock
27. snow and ice off the engine Clean the entire snow thrower thoroughly after each use and wipe dry so it is ready for next use NOTE Determine the left and right sides of the machine from the normal operating position MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERVICE O vi IV I Clean Inspect Snow Thrower W IV Check Replace V Belts Pt tw tT I tt tubrcaioncran A IT Cressengne oner fe II SITT fcrargeerareoi S S ww FIT TT meme ww dT pot tw tT ft Empty Fuel Tank OU U Adjusting the Control Cable Checking the Control Cable Release the control bar to remove the slack in the control cable Figure 20 Figure 20 1 Control bar IMPORTANT The control cable must contain some slack when you disengage the control bar for the auger blades to stop properly NOTE You may need to adjust the control cable from position 1 default to position 2 if you notice belt slip when the control bar is engaged NOTE If the control cable is adjusted to position 2 ensure that the auger stops properly when the control bar is released 12 Adjusting the Control Cable 1 With the control bar disengaged unhook and move the control cable to the highest position Figure 21 1 y Position 2 zl LP G Position 1 Default position Lower Hole as shown in illustration Figure 21 1 Control bar 2 Adjuster link 3 Cable po
28. t Loss of snow 1 Auger belt is off of pulley 1 Check reinstall auger belt discharge or 2 Auger belt is worn 2 Check replace auger belt slowing of 3 Clogged discharge chute 3 Clean snow chute snow discharge 4 Augers impeller jammed 4 Remove debris or foreign object from augers impeller 17 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 CHUTE ASSEMBLY SSST Chute asm_5 NOTE All component dimensions given in U S inches 1 inch 25 4 mm IMPORTANT Use only Original Equipment Manufacturer O E M replacement parts Failure to do so could be hazardous damage your snow thrower and void your warranty 18 REPAIR PARTS SNOW THROWER MODEL NUMBER MC621 96188000300 CHUTE ASSEMBLY NOTE All component dimensions given in U S inches PART NO 532 43 48 77 532 43 76 40 532 43 76 35 817 41 13 12 532 43 76 42 873 97 05 00 532 43 48 79 532 08 13 28 532 43 48 78 532 13 20 04 532 43 76 26 532 43 73 18 532 43 76 55 532 19 19 38 532 43 76 43 819 13 13 16 819 13 20 16 532 42 88 67 ra 2 a a UU l 0 BR OD NM DESCRIPTION CHUTE RATCHETING PLASTIC W GRV PLATE CHUTE RETAINER PLATE CHUTE BASE BOLT HEX WSH HD 13 16 X 3 4 HANDLE CHUTE MS428 NUT LOCK HX W INS 5 16 18 UNC PL SPRING RATCHET ARM BOLT SHOULDER 1 4 20 UNC X 94 ARM CHUTE RATCHET HEX NUT 1 4 20 NYLON LOCKING PLENUM CARRIAGE BOLT CHUTE HANDLE KNOB DEFLECTOR CHUTE WASHER
29. thrower and push the electric start button once to preventthe recoil starter and or the electric starter from freezing up In snowy and cold conditions some controls and mov ing parts may freeze Do not use excessive force when trying to operate frozen controls If you have difficulty operating any control or part start the engine and let it run for a few minutes Operating Tips The auger blades can throw stones toys and other foreign objects and cause serious personal injury to the operator or to bystanders Keep the area to be cleared free of all objects that the auger blades could pick up and throw e Keep all children and pets away from the area of operation e Do not operate snow thrower if weather condi tions impair visibility Throwing snow during a heavy windy snowstorm can blind you and be hazardous to the safe operation of the snow thrower Maintenance The best time to remove snow is the early morning At this time the snow is usually dry and has not been exposed to the direct sun and warming temperatures Slightly overlap each successive path to ensure all snow will be removed Throw snow downwind whenever possible For extremely heavy snow reduce the width of snow removal by overlapping previous path and moving slowly Keep engine clean and clear of snow during use This will help air flow and extend engine life After snow throwing is completed allow engine to run for a few minutes to melt
30. wise 5 Fill oil to FULL on dipstick with the recommended oil 6 Securely screw in the oil filler cap dipstick NOTE Running the engine with a low oil level can cause engine damage Always checkthe engine oil before startup NOTE Running the engine with too much oil may cause engine damage and excess smoke in the exhaust Always check the engine oil level before start up i i 3 Firmly push in the primer 3 times with your thumb Starting the Engine holding the primer in a for a second before releasing 1 Push key in Figure 10 it each time Figure 12 Figure 12 1 Primer Figure 10 1 Key NOTE Remove your glove when you push in the primer so that air cannot escape from the primer hole 2 Move choke lever to left position Figure 11 IMPORTANT Do not use the primer or the choke if the engine has been running and is hot Excessive priming may flood the engine and prevent it from starting 4 Connect an extension cord to the snowthrower and plug the other end into a three hole grounded 120 volt A C receptacle and push the electric start button Figure 13 or pull the recoil start handle Figure 14 Figure 11 1 Choke lever Figure 13 1 Electric start button NOTE Use only a UL listed 16 gauge extension cord recommended for outdoor use that is not longer than 50 feet 15 m The electrical cord can become damaged causing a sho
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